Faculty of Engineering, Built Environment & Design (FEng / FBD): Recent submissions
Now showing items 261-280 of 1463
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Solution to Economic Load Dispatch using Particle Swarm Optimization
(Department of Electrical and Information Engineering, School of Engineering, University of Nairobi, Kenya, 2014)-This paper proposes to determine the feasible optimal solution of the economic load dispatch power systems problem using Particle Swarm Optimization (PSO) considering various generator constraints. The objective of the ... -
Design and Evaluation of Solar Grain Dryer with a Back-up Heater
(University of Nairobi, 2014-04)The aim of the study was to design and construct a solar grain dryer integrated with a simple biomass burner using locally available materials. This was to address the limitations of the natural sun drying for example drying ... -
An Investigation Into Low‐temperature Nitrogen Plasma Environment Effect On The Content Of Polyphenols During Withering In Made Kenyan Tea
(University of Nairobi, 2014-12)Low-temperature nitrogen plasma (LTNP) was used to wither green tea leaf to study its effect on the polyphenol content. Using a dielectric barrier discharge chamber to provide the LTNP environment, green tea leaf was ... -
First Total Reflection X-ray Fluorescence Round-robin Test Of Water Samples: Preliminary Results
(University of Nairobi, 2014)otal Reflection X-Ray Fluorescence (TXRF) is a mature technique to evaluate quantitatively the elemental composition of liquid samples deposited on clean and well polished reflectors. In this paper the results of the first ... -
Theoretical Evaluation Of The Effective Alpha And De Jongh Approaches In X-ray Fluorescence Analysis Of Geological Materials In Borax Glass Beads
(University of Nairobi, 1989-12)An evaluation of the accuracy and suitability of the Lachance–Traill algorithm using effective α-coefficients, and the De Jongh α approach for x-ray fluorescence analysis of borax glass beads prepared from geological ... -
Total Suspended Particulate Matter in Air of Some Urban Areas in Kenya
(University of Nairobi, 1994)The information available suggests that the concentration of total suspended particulate matter in major urban areas are reaching unprecended levels(>230μg/m3). From the first documented study on total suspended particulate ... -
Relaxed Controls in Asynchronous Quenching and Dynamical Optimization
(University of Nairobi, 1974-04)Some definitions and mathematical notions useful in the analysis and synthesis of relaxed control as applied to asynchronous quenching and dynamical optimization are given. Existence and nonexistence of proper relaxed ... -
Strategic Development Plans for Kiriaini, Kihoya, KAanyenyaini, Kahati, Kahuro and Kambirwa
(University of Nairobi, 2014) -
Voltage controller for radial distribution networks with distributed generation
(University of Nairobi, 2014-03)This paper presents a coordinated network controller whose objective is to maintain an optimal voltage profile across radial distribution networks with distributed generation. This is done by varying the output of the ... -
Note on the effect of cross-sensitivity in the determination
(University of Nairobi,, 1971)The concentric Mohr circles of modified apparent strain, true strain and stress permit quick visualisation and calculation of true strains and stresses from readings of gauges with known cross-sensitivities -
A seasonal air transport climatology for Kenya
(University of Nairobi, 1999-06)A climatology of air transport to and from Kenya has been developed using kinematic trajectory modeling. Significant months for trajectory analysis have been determined from a classification of synoptic circulation fields. ... -
Measurement of SO2 in Nairobi
(University of Nairobi, 1995)Sulphur dioxide in the atmosphere at Nairobi industrial area and its environs was measured using pararosaniline method. Higher concentrations were recorded in the morning hours (14.2-112.0μgm3) than in the afternoon ... -
Reaction invariants and their importance in the analysis of eigenvectors, state observability and controllability of the continuous stirred tank reactor
(University of Nairobi, 1974-09)Two different projection operators are found, projecting the state space of a continuous stirred tank reactor (C.S.T.R.) dynamic model on the space of asymptotically invariant states (or on the space of true invariant ... -
Non-destructive XRF analysis of Nigerian and Kenyan clays
(University of Nairobi, 1997-04)Nigerian and Kenyan clays were analysed using energy dispersive X-ray fluorescence (EDXRF) technique and thirteen elements (Ca, Ti, Mn, Fe, Ni, Cu, Zn, Br, Rb, Sr, Zr, Nb and Pb) were detected. The health implications, ... -
The Prospects Of Enhanced Space Science Training In Kenya
(University of Nairobi, 1997)To a limited extent, space exploration has been conducted in Kenya for almost the last two decades through a joint project (San Marco Project) between the Government of Kenya and the Government of Italy. Other space science ... -
Space science education in the African continent
(University of Nairobi, 1997)Through measurement and interpretation of the spectral, spatial and temporal variations in electromagnetic emissions and reflections from the Earth's surface, important information related to natural resources can be ... -
Characterization and transport of aerosols over equatorial eastern Africa
(University of Nairobi, 2001-09)Measurements of the composition of aerosol partitioned into two size fractions, fine (particle aerodynamic equivalent diameter, dp <= 2.5 mum) and coarse (2.5 < dp <= 10 mum) were made at a high-altitude site over equatorial ... -
Between Global and Regional Visions: The Way Forward for Uganda’s Cities
(university of Nairobi, 2013)Cities have a significant impact on the economy and development of any given nation. In particular, they offer a place to live. They have proved to be dense networks of interchanging investments, information, goods and ... -
Variations in Land Delivery Costs as a Factor in Land Speculation in Metr opolitan Nairobi: A case study of Eastlands, Nairobi, and the bordering areas of Machakos and Kajiado counties
(University of Nairobi, 2013)The urban rural duality in the land administration policy in Kenya tends to create two land use development control models and, further, such policy results in two separate land transaction costs. In a situation where land ...